Oil-burner.



No. 773,543. PATENTED NOV. 1, 1904.

A. F. OHAOIE. OIL BURNER.

APPLICATION FILED DEC. 23. 1903.

, N0 MODEL.

UNITED STATES Patented November 1, 1.90%.

PATENT OEETcE.

ALBERT F. OHAOE, OF BOSTON. MASSACHUSETTS, ASSIGNOR TO HIMSELF,

MAssAcHUsE'rTs.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 773,543, dated November1, 1904.

Application filed December 23,1903. Serial No. 186,293. (No model.)

To (LZZ whom, it may concern.-

Be it known that I, ALBERT F. O1-IAon,.of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and '5useful improvements in Oil-Burners, of which the following is aspecification.

This invention relates to oil-burners or oilconsuniing apparatus inwhich oil is atomized or reduced to fine spray and taken up by a Iocurrent of air, the oil-laden air-current being supplied to a burnerwhere the oil and the oxygen of the air are consumed.

The invention has for its object to provide improved means for atomizingthe oil and for presenting it to the air-current, so that the oil atomsmay be intimately mixed with the air and gas, and thereby to theburner-tip.

The invention consists in the improvements which I will now proceed todescribe and claim.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a longitudinal section of an oil-burner embodying myinvention. Fig. 2 represents a section on line 2 2 of Fig. 1. Fig. 3represents a section on line 3 3 of Fig. 1. Fig. 4 represents aperspective view of the oil-distributing cage detached from theoil-outlet.

The same characters of reference indicate the same parts in all thefigures.

In the drawings, (t represents a casing which may be of cast-iron orother suitable material and is preferably cylindrical in form, one endbeing preferably tapering or frusto-conical.

5 represents an air-pipe which is connected with one side of the casingand communicates with the source of supply of air under pressure.

0 represents an outlet for the mixture of air 4 and atomized oil, thesaid outlet being a tube extending to a burner-tip or forming a partthereof. The outlet 0 is preferably connected with the casing at thesmaller end of the tapering portion thereof and is preferably arrangedin alinement with the longitudinal center or axis of the cylindricalcasing.

66 represents a head or plug which closes the end of the casing oppositethe outlet 0, the

said head containing a duct or passage (Z. through which oil enters thecasing.

cl represents an oil-conducting pipe extending from a source ofoil-supply and communicating with one end of the duct (Z.

i (Z represents a .pipe or tube constituting an extension of the duct (Zand projecting from the head a into the casing, the said tube (Z beingpreferably in line with the outlet 0, and therefore occupying thelongitudinal center or axis of the casing. The tube (Z is provided atits outer portion with a delivering-section (Z3, provided with numeroussmall orifices (P, Fig. 3, arranged to discharge oil outwardly innumerous small streams, the orifices (F being preferably arrangedradially.

6 represents a disseminator comprising a rotary atomizing-sereensurrounding the oildelivering section or portion (Z and arranged to acton the radiating streams of oil, the said screen being sufficientlyelongated so that when rapidly rotated it effects a thorough atomizationof the oil and distributes it in the form of spray in the portion of thecasing which surrounds the disseminator and intervenes between theair-inlet b and the burnersupplying outlet 0. The finely-atomized oil istherefore thoroughly mixed with the air while within the chamber andbefore it escapes at the outlet. The screen 6 is preferably composed oftwo annular end pieces or heads 5 5, which are mounted to rotate uponthe delivering-section (Z rods or bars 6 6 connecting the heads 5 5 andextending parallel with the axis of the screen, and a foraminouscovering or screen proper, 7, which is preferably of cylindrical formand is supported by the bars 6 between the heads 5. Thesc'reen 7 ispreferably made of wire-cloth, and in practice I have employed twocylindrical layers of wire-cloth in making the screenviz., an innerlayer and an outer layerthe innerlayer being of coarser mesh than theouter.

f represents a wind-wheel which is attached to the screen a and isarranged to be rotated by the air-current delivered to the casing by thepipe 6, the rotation of the wind-wheel be- FRANOIS H. APPLETON, ANDFRANCIS H. APPLETON, JR. OF BOSTON,

ing imparted to the screen. In this embodiment of my invention the saidwind-wheel is composed of two annular collars or hubs 8 8, mounted torotate upon the oil-pipe (Z and blades 9, affixed to the hubs 8, andpreferably radiating from the axis of rotation of the wind-wheel. Thewind-wheel is affixed to the screen a by means of extensions of thescreenbars 6, said extensions being afl ixed to one of the hubs 8 of thewind-wheel. The windwheel and the air-inlet b are so arranged relativelyto each other that the current of air delivered by the pipe 6 impingesupon the blades of the wind-wheel in such direction as to rotate thelatter and the screen a in the di rection indicated by the arrow in Fig.2, the inner end of the air-pipe 5 being preferably provided with adeflector 7), formed to impart the desired direction to the air-currentand cause the latter to rotate the wind-Wheel.

The oil atomized and distributed as described by the rotation of thescreen is thrown into that portion of the casing through which the airpasses on its way from the air-inlet to the lmrner-supplying outlet.Hence the aircurrent takes up the atomized oil and carries itcontinuously away from the screen to the outlet 0. The movement of theair and the atomized oil thus caused facilitates the outward movement ofthe atomized oil from the screen and prevents the air-pressure fromobstructing the outward movement or distribution of the oil, as might bethe case if the screen were located out of the path taken by the airfrom the inlet 6 to the outlet 0. 1 regard this relative arrangement ofthe screen, the air-inlet, and the air and oil outlet as of muchimportance and as contributing materially to the effective operation ofthe apparatus.

represents a needle-valve which has a screw-thread connection at 71 withthe head a and extends into the oil-conduit, the conical acting portionof the valve cooperating with a correspondingly-formed seat 7' betweenthe tube (l and the perforated delivering portion cl" in regulating thequantity of oil delivered.

In practice the oil is delivered to the apparatus under pressure, thepressure of the oil being preferably equal to or greater than thepressure of air.

I have found that by the described apparatus I am enabled tosuccessfully and effectively consume crude petroleum without theformation of any accumulation of carbon or other residual matter in anypart of the apparatus.

I do not limit myself to the described form and details of constructionof the essential features of the apparatus, and the same may bevariously modified without departing from the spirit of the invention.

The opening in the casing covered by the removable head or plug a is ofsufficient size to permit the insertion and removal of the screen andwind-w heel with the pipe (Z Hence by unscrewing the head a, which has ascrewthread connection, as shown, with the casing, the said parts can bereadily removed to be inspected.

1. An oil atomizer and burner comprising a mixing-chamber having anair-inlet and a burner-supplying outlet, an oil-conduit extending intothe chamber and having a delivering portion located between the saidinlet and outlet and adapted to deliver oil into the portion of thechamber through which the air passes from the inlet to the outlet, anelongated rotary atomizing-screen surrounding said delivering portionand arranged to act on the delivered oil, and a wind-wheel connectedwith said screen and located in the path of the air-current from thesaid inlet.

2. An oil atomizer and burner comprising a mixing-chamber having anair-inlet and a burner-supplying outlet, an oil-conduit extending intothe chamber and having a perforated delivering portion, a rotaryatomizing-sereen journaled in the oil-conduit and comprising aforaminous cylinder surrounding the said perforated portion, and awindwheel also journaled in the oil-conduit and connected with thescreen, said wheel being in the path of the air-current delivered to thecasing by the air-inlet.

3. An oil atomizer and burner comprising a mixing-chamber having anair-inlet, a burnersupplying outlet, and an opening at the end oppositesaid outlet, a head or plug formed to close said opening and detachablyconnected with the casing, an oil-conduit attached to said head andprojecting into the casing, said eonduit having a delivering portionwithin the casing. a rotary screen and a rotary windwheel connectedtherewith, both journaled in the oil-conduit, the screen surrounding thesaid delivering portion, while the wind-wheel is in the path of theair-current, said screen and wind-wheel being removable with theoilconduit and the head or plug.

In testimony whereof I have affixed my signature in presence of twowitnesses.

ALBERT F. CHAGE.

lVitn esses:

C. F. BROWN, E. BATOIIELDER.

